reload fonts

[rogerdpack]

Hi Antonio.
I want to do something so that I can edit preferences and have it "re
display" using the new fonts that I have specified in the preferences
file.
I can get it to reload the preferences file, but cannot get it to
redisplay changed fonts right.

Any pointers there?
-r

[antonio.galeone]

Must be done.
An idea can 'be: when one uses a property it is registered as a
listener,
so when the property is changed you can' change the reality property
of the registered widgets.

angal

[Roger Pack]

> Must be done.
> An idea can 'be: when one uses a property it is registered as a
> listener,
> so when the property is changed you can' change the reality property
> of the registered widgets.

I guess my difficulty is in getting the fonts to reload *at all* :)
-r

[Antonio Galeone]

My idea can be like this:

now we have :

    label = TkLabel.new(self){
      text  'Arcadia'
      font  conf('font')      [or  Arcadia.conf('font')]
      place('width' => '190','x' => 110,'y' => 10,'height' => 25)
    }

if we create a new method:

def conf(_property, _change_callback_proc)
   ...
   @hash_property_callbacks[_property] << _change_callback_proc
   ...
end

we rewriete :

    label = TkLabel.new(self){
      text  'Arcadia'
      font  conf('font', proc{|new_value| self.configure('font'=> new_value)})
      place('width' => '190','x' => 110,'y' => 10,'height' => 25)
    }

when you edit properties file  throws a wizard then use

@hash_property_callbacks[_property].each{|cb|
    cb.call(new_value)
}

2009/10/14 Roger Pack <roger...@gmail.com>

[Roger Pack]

>    @hash_property_callbacks[_property] << _change_callback_proc

Another option would be to just require each plugin that *can* reload
to listen for a ReloadExtensionEvent
then they would each reload themselves separately, I suppose...
-r

[antonio.galeone]

Nice, I like this solution.